MAX1245ACAP+ Equivalent & Substitute Parts

Part Overview

The MAX1245ACAP+ is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring SAR (Successive Approximation Register) architecture. This component features 4 or 8 configurable input channels with differential and single-ended input support, operating at a 100 kHz sampling rate with SPI data interface compatibility.

The MAX1245ACAP+ is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance or redesign initiatives.

Substiute Parts

MAX1245ACAP+
Analog Devices Inc./Maxim IntegratedIn Stock: 962MAX1245ACAP+ Datasheet
MAX1245ACAP+
Current Part
MAX1245BCAP+
Analog Devices Inc./Maxim IntegratedIn Stock: 1067MAX1245BCAP+ Datasheet
MAX1245BCAP+
Parametric Equivalent

Key Parameters

Parameter Value
Resolution (Bits) 12
Sampling Rate 100 kHz
Input Channels 4, 8
Input Type Differential, Single Ended
Data Interface SPI
Architecture SAR
Analog Supply Voltage 2.375V ~ 3.3V
Digital Supply Voltage 2.375V ~ 3.3V
Operating Temperature Range 0°C ~ 70°C
Package Type 20-SSOP
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1245ACAP+ is determined by strict equivalence across the following critical parameters:

  • Resolution: 12 bits
  • Sampling Rate: 100 kHz
  • Input Configuration: 4 or 8 channels with differential and single-ended support
  • Data Interface: SPI protocol
  • Architecture: SAR-based conversion
  • Supply Voltage Ranges: Analog 2.375V ~ 3.3V; Digital 2.375V ~ 3.3V
  • Package: 20-SSOP form factor
  • Compliance: ROHS3 Compliant, REACH Unaffected

The MAX1245BCAP+ meets all these criteria and qualifies as a parametric equivalent substitute. Both parts share identical electrical specifications, pin configuration, and functional behavior within the specified operating conditions.

Parameter Comparison

Parameter MAX1245ACAP+ MAX1245BCAP+ Match
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Yes
Resolution (Bits) 12 12 Yes
Sampling Rate (kHz) 100 100 Yes
Input Channels 4, 8 4, 8 Yes
Input Type Differential, Single Ended Differential, Single Ended Yes
Data Interface SPI SPI Yes
Architecture SAR SAR Yes
Analog Supply Voltage 2.375V ~ 3.3V 2.375V ~ 3.3V Yes
Digital Supply Voltage 2.375V ~ 3.3V 2.375V ~ 3.3V Yes
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C Yes
Package / Case 20-SSOP (0.209", 5.30mm Width) 20-SSOP (0.209", 5.30mm Width) Yes
Mounting Type Surface Mount Surface Mount Yes
RoHS Status ROHS3 Compliant ROHS3 Compliant Yes
REACH Status REACH Unaffected REACH Unaffected Yes
Product Status Obsolete Obsolete Yes

Engineering Selection Recommendations

The MAX1245BCAP+ is a direct parametric equivalent to the MAX1245ACAP+ and is suitable for substitution in applications requiring identical electrical and functional performance. Both parts are obsolete products from the same manufacturer, maintaining full compliance with ROHS3 and REACH regulations.

Selection between these parts should be based on:

  • Availability: MAX1245BCAP+ currently has 974 units in stock versus 869 units for MAX1245ACAP+
  • Packaging Format: MAX1245BCAP+ is supplied in tube packaging, while MAX1245ACAP+ packaging specification is not detailed
  • Supply Chain Continuity: Either part provides equivalent functionality for legacy system support or redesign applications

No additional technical criteria differentiate these components. Pin-for-pin compatibility and identical performance characteristics ensure seamless integration into existing designs.

Frequently Asked Questions (FAQ)

Q: Can MAX1245BCAP+ replace MAX1245ACAP+ in existing designs?

A: Yes. The MAX1245BCAP+ is a parametric equivalent with identical resolution, sampling rate, input configuration, supply voltage requirements, package type, and operating temperature range. No design modifications are required.

Q: Are there differences in pin configuration between these parts?

A: No. Both parts use the 20-SSOP package with identical pin assignments and functional behavior.

Q: What is the significance of the packaging difference (tube vs. unspecified)?

A: Packaging format affects handling, storage, and assembly processes but does not impact electrical performance or compatibility. Tube packaging is standard for surface-mount components and does not restrict substitution.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these products are no longer in active production. Both parts remain functionally equivalent and suitable for applications requiring 12-bit SAR ADC functionality with the specified parameters.

Q: Are there compliance concerns with using either part?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

Q: Can these parts be used interchangeably in production?

A: Yes. Identical electrical specifications, package type, and compliance certifications support direct interchangeability without design changes or additional qualification.

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